勢不兩立
Extreme Enemy (1971)
Korean Title: The Flying Dragon in the Dark Night
Alias : 黑夜飛龍刀
Alias: Dragon Sword in Darkest
Korean Title : 흑야비룡도
Country: Hong Kong
Language: Mandarin 
Genre: Martial Arts 
Release Date: 12/16/1971
 
Directors
  Chien Lung
  Jeon Beom-Sung
 
Script
  Tin Goh
 
Action Directors
  Pan Chuan-Ling
  Wong Chun-Loi
  Huang Mao-Sheng
 
Producer
  Wong Cheuk-Hon
 
 
Cast
  Chang Ching-Ching    
  Wang Yong (7)    
  Pai Yu    
  Ko Hsiao-Pao    
  Yi Yuan    
  Wang Tai-Lang    
  Pan Chuan-Ling    
  Chin Mi    
  Hung Chin-Lien    
  Huang Fei-Long    
  Ma Chi (1)    
  Shan Mao    
  Li Hsun    
  Seong Jin-a    
  Shen Lin-Yi    
  Wong Chun-Loi    
 
Production Company
  First Films
 
Distributor
  New Ship Enterprise Co., Ltd. (Taiwan)
 
Cinematographer
  Lee Jong-Kwan
 
Production Manager
  Chan Hsi-Fan
 
Props
  Jeon Seok-Jin
 
Filming Location
  Taiwan